DE502004000314D1 - Method for determining the porosity of a workpiece by means of ultrasound - Google Patents

Method for determining the porosity of a workpiece by means of ultrasound

Info

Publication number
DE502004000314D1
DE502004000314D1 DE502004000314T DE502004000314T DE502004000314D1 DE 502004000314 D1 DE502004000314 D1 DE 502004000314D1 DE 502004000314 T DE502004000314 T DE 502004000314T DE 502004000314 T DE502004000314 T DE 502004000314T DE 502004000314 D1 DE502004000314 D1 DE 502004000314D1
Authority
DE
Germany
Prior art keywords
porosity
workpiece
ultrasound
determining
depth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE502004000314T
Other languages
German (de)
Inventor
Rainer Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intelligendt Systems & Services 91052 Er De GmbH
Original Assignee
IntelligeNDT Systems and Services GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IntelligeNDT Systems and Services GmbH and Co KG filed Critical IntelligeNDT Systems and Services GmbH and Co KG
Publication of DE502004000314D1 publication Critical patent/DE502004000314D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654—Imaging
    • G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

Ultrasound signal is passed through the workpiece (2). Variation of the amplitude (A) of the signal as a function of depth (d) is taken as a measurement of porosity within that depth.
DE502004000314T 2003-06-27 2004-06-23 Method for determining the porosity of a workpiece by means of ultrasound Expired - Lifetime DE502004000314D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10329142A DE10329142A1 (en) 2003-06-27 2003-06-27 Method for determining the porosity of a workpiece

Publications (1)

Publication Number Publication Date
DE502004000314D1 true DE502004000314D1 (en) 2006-04-27

Family

ID=33395033

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10329142A Withdrawn DE10329142A1 (en) 2003-06-27 2003-06-27 Method for determining the porosity of a workpiece
DE502004000314T Expired - Lifetime DE502004000314D1 (en) 2003-06-27 2004-06-23 Method for determining the porosity of a workpiece by means of ultrasound

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10329142A Withdrawn DE10329142A1 (en) 2003-06-27 2003-06-27 Method for determining the porosity of a workpiece

Country Status (5)

Country Link
US (1) US7010980B2 (en)
EP (1) EP1491887B1 (en)
AT (1) ATE319084T1 (en)
DE (2) DE10329142A1 (en)
ES (1) ES2260714T3 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7752882B2 (en) * 2005-11-17 2010-07-13 The Boeing Company Porosity reference standard utilizing a mesh
US7694546B2 (en) * 2005-11-17 2010-04-13 The Boeing Company Porosity reference standard utilizing one or more hollow, non-cylindrical shafts
US7762120B2 (en) 2005-12-01 2010-07-27 The Boeing Company Tapered ultrasonic reference standard
US7389693B2 (en) * 2006-02-15 2008-06-24 General Electric Company Methods and apparatus for porosity measurement
DE102006010010A1 (en) * 2006-03-04 2007-09-06 Intelligendt Systems & Services Gmbh & Co Kg Method for ultrasonic testing of a workpiece in a curved area of its surface and suitable test arrangement for carrying out the method
US7770457B2 (en) * 2006-10-13 2010-08-10 The Boeing Company Pseudo porosity reference standard for metallic interleaved composite laminates
US7617714B2 (en) 2006-12-06 2009-11-17 The Boeing Company Pseudo porosity reference standard for cored composite laminates
GB0701963D0 (en) * 2007-02-01 2007-03-14 St George S Healthcare Nhs Tru An automated method for assessing the performance of ultrasound imaging systems
US7895895B2 (en) * 2007-07-23 2011-03-01 The Boeing Company Method and apparatus for quantifying porosity in a component
US8029644B2 (en) 2007-11-15 2011-10-04 The Beoing Company Controlled temperature scrap removal for tape process
US9032801B2 (en) * 2012-10-23 2015-05-19 General Electric Company Ultrasonic measurement apparatus and method
US9140673B2 (en) 2013-05-27 2015-09-22 The Boeing Company Method for fabricating composite porosity standards
JP6161161B2 (en) * 2013-12-25 2017-07-12 国立大学法人京都大学 Porosity evaluation method and porosity evaluation apparatus in composite material
US9804130B2 (en) * 2015-05-08 2017-10-31 The Boeing Company System and method for providing simulated ultrasound porosity waveforms
CN105181553B (en) * 2015-09-10 2018-07-06 中国航空工业集团公司北京航空材料研究院 A kind of carbon fibre composite laminate porosity non-destructive testing sample selects method
JP6682913B2 (en) * 2016-02-29 2020-04-15 株式会社Ihi Damage evaluation device and damage evaluation method
CN108226007B (en) * 2017-12-29 2020-05-19 大连理工大学 Characterization method for porosity of carbon fiber reinforced resin matrix composite material based on ultrasonic double parameters
US11650183B2 (en) * 2020-03-30 2023-05-16 Verifi Technologies, Llc System and method for real-time degree of cure evaluation in a material
US11860131B2 (en) 2020-03-30 2024-01-02 Verifi Technologies, Llc System and method for portable ultrasonic testing
US11686707B2 (en) 2020-03-30 2023-06-27 Verifi Technologies, Llc System and method for real-time visualization of defects in a material
US11754529B2 (en) 2020-03-30 2023-09-12 Verifi Technologies, Llc System and method for evaluating defects in a material
US11726065B2 (en) 2020-03-30 2023-08-15 Verifi Technologies, Llc System and method for real-time visualization of defects in a material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU513309A1 (en) 1972-07-10 1976-05-05 Предприятие П/Я Г-4361 The method of controlling the porosity and structure of materials
EP0515734B1 (en) * 1991-05-27 1997-12-17 Fokker Aircraft B.V. A method of and an apparatus for frequency selective ultrasonic inspection of multi-layered structures
FR2682482B1 (en) * 1991-10-14 1993-12-31 Aerospatiale Ste Nationale Indle APPARATUS FOR NON - DESTRUCTIVE ULTRASONIC TESTING OF MATERIALS SUCH AS COMPOSITE MATERIALS AND METHOD THEREOF.
US5637799A (en) * 1992-04-15 1997-06-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for evaluating multilayer objects for imperfections
US5390544A (en) * 1993-07-16 1995-02-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for non-destructive evaluation of composite materials with cloth surface impressions
CA2411628C (en) * 2000-07-14 2009-12-01 Lockheed Martin Corporation A system and method of determining porosity in composite materials using ultrasound

Also Published As

Publication number Publication date
ATE319084T1 (en) 2006-03-15
EP1491887A1 (en) 2004-12-29
US20040261530A1 (en) 2004-12-30
DE10329142A1 (en) 2005-01-27
US7010980B2 (en) 2006-03-14
ES2260714T3 (en) 2006-11-01
EP1491887B1 (en) 2006-03-01

Similar Documents

Publication Publication Date Title
DE502004000314D1 (en) Method for determining the porosity of a workpiece by means of ultrasound
ATE534923T1 (en) METHOD AND DEVICE FOR DETERMINING A VERTICAL COMPONENT OF THE PARTICLE VELOCITY
DE60322893D1 (en) DRAWING AND DEVICE FOR CARRYING OUT THIS METHOD
DE602004010599D1 (en) Method for measuring the curved surface of a workpiece
ATE402518T1 (en) METHOD FOR DETERMINING A NUMERICAL VALUE FOR THE TIME DURATION OF A PERIODICALLY REPEATING IMPULSE SIGNAL, AND DEVICE FOR IMPLEMENTING SUCH A METHOD
DE59502057D1 (en) METHOD FOR DETERMINING THE POSITION OF AN OBJECT RELATIVE TO THE BACKGROUND BY MEANS OF ULTRASOUND
ATE364165T1 (en) METHOD FOR MEASURING AN OBJECT GEOMETRY USING A COORDINATION MEASURING DEVICE
DE50200869D1 (en) METHOD AND DEVICE FOR CHARACTERIZING A SIGNAL AND METHOD AND DEVICE FOR GENERATING AN INDEXED SIGNAL
DE602005004702D1 (en) Method and device for determining the performance degradation of an aircraft
DE602005017130D1 (en) METHOD AND DEVICE FOR MEASURING OTHERS
ATE421078T1 (en) METHOD AND DEVICE FOR MEASURING WORKPIECES USING A PROBE ON A MACHINE TOOL
DE602006014533D1 (en) METHOD OF MEASURING POROSITY BY MEANS OF ELLIPSOMETRY AND DEVICE FOR IMPLEMENTING SUCH A METHOD
DE50214784D1 (en) Method and arrangement for measuring distance and pressure within an air spring
DE602005019996D1 (en) DEVICE AND METHOD FOR DIMENSIONAL CHARACTERIZATION OF A CYLINDER SUBJECT
ATE312499T1 (en) DEVICE AND METHOD FOR DETERMINING AN IMPULSE RESPONSE AND DEVICE AND METHOD FOR PREPARING AN AUDIO PIECE
WO2009014467A3 (en) Method for determining sea water salinity and density
ATE409861T1 (en) METHOD FOR DETECTING INCORRECTIONS ON LONG-LONG WORKPIECES USING ULTRASOUND
DE50307020D1 (en) measuring system
DE502005008524D1 (en) Apparatus and method for measuring the diameter of a rod-shaped object, in particular the tobacco-processing industry
DE602004024484D1 (en) Device and method for measuring the parameters during tests during the flight of an aircraft
DE502004002444D1 (en) DEVICE AND METHOD FOR DETERMINING THE TREATMENT OF A TOOL WITH THIN-SEA SENSORS
DE502004006274D1 (en) METHOD AND DEVICE FOR TESTING A COMPONENT SURFACE CONTOUR COMPONENT BY ULTRASOUND
ATE531320T1 (en) ARRANGEMENT AND METHOD FOR DETERMINING THE COMBINATION OF RADIIES OF CURVATURE AND DISTANCES AT ACOUSTIC BOUNDARIES IN MEASURING OBJECTS USING ULTRASOUND
ATE517355T1 (en) DEVICE FOR DETECTING AND LOCATION OF NOISE EMISSIONS
ATE466261T1 (en) METHOD FOR MEASURING THE FILLING HEIGHT AND INCLINE OF A SURFACE OF A LIQUID

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: INTELLIGENDT SYSTEMS & SERVICES GMBH, 91052 ER, DE